Resinous composition



Patented May 13, 1924.

PATENT OFFICE.

EMILE DE ST'UBN'ER, OF NEW YORK, N. Y.

RESINOUS COMPOSITION.

No Drawing. Application filed May'13, 1918, Serial No. 234,118. RenewedOctober 3, 1923.

To all whom it may concern 7 Be it known that I, EMILE DE STUBNER, acitizen of Switzerland, residing at New York, in the county of New Yorkand State of New York, have invented certain new and useful Improvementsin Resinous Composition, of which the following is a speclfication,reference being had therein to the accompanying drawing.

The object of this invention is to produce a new composition of matterwhich may be employed for .a variety of purposes such as are now servedby rubber, gutta percha, and the like, and in addition will ossess valu-I able characteristics which wil adapt the same for other and furtheruses; and which composition of matter may be produced at very smallexpense, and with this end in view my invention consists in the noveland improved composition of matter, and the process of making the same,which composition and process will be fully described in thespecification to follow, and the novel characteristics of which will beset forth in the appended claims.

I have found by tests and experiments that resinous and gummy substancescan be dissolved in unsaturated fatty acids or in mixtures of the samewith saturated acids,

or their esters or mixturesthereof, and par ticularly I havedemonstrated practically that shellac ban be readily dissolved in a warmbath or quantity of the unsaturated fatty acid split ofl' fromChina-wood oil, or

esters or mixtures thereof, the said solution forming a composition ofmatter resembling rubber in many of its characteristics, and possessingin addition, valuable properties not possessed by rubber.

v 40 My improved composition may be produced in different degrees ofconsistency from hard to soft, according to the proportions of theingredients employed in its make-up, and in producing said compositionin accordance with my process I provide a quantity of an unsaturatedfatty acid or its esters or mixtures thereof, as the case may be, whichis heated to a suitable temperai ture, and I place therein a quantity ofgum or resin, as the case may be, and I thoroughly intermix the two sothat the gum or resii will dissplveatlg: quantities of th; inients emoye ing proportione ac liding to tge consistence which it is desiredthat the product will possess, and the particular use for which it is tobe employed.

In the production of a product for instance whose ingredients areshellac and the unsaturated fatty acid split off from Chinawood oil, Imix the two in proportions of 332,75 or thereabout of the acid, and 66570 or thereabout of shellac, first heating the acid to a temperature offrom 100 to 300 Fahr. sel and heated to the de ree stated, and theproper proportion of shel ac is added thereto, and the two substancesthoroughly stirred or agitated until the shellac is wholly dissolved inthe acid. The mixture on coolin will take the form of a substantial,soli body, and it may be poured before cooling into suitable molds orotherwise handled to give it the desired shape and form.

I have found the composition of matter thus formed to possess amongother characteristics, very high insulating properties; to be waterproofand oilproof; to possess a considerable degree of elasticity; and topossess other properties which make the same adaptable with valuableadvantages for many purposes in the commercial arts. For instance theproduct may be employed as an insulating material, and as a matter offact it possesses higher dielectric properties than ru ber insulation.It is thus well ada ted and suitable for covering cables and the ike,

and alsoas an insulating support or base for transformers which are nowcustomarily seated in a body of oil and for which use rubber is notsuitable. Also my improved product may be employed for the manufactureof the inking rolls of printin machinery, and for platens fortypewriting machines; and by heating the composition to a propertemperature to give it a fluid form, fa rics may be impregnated with thesame to render them waterproof. So also the product may be employed byreason of its valuable and peculiar characteristics, for various otherpurposes unnecessary here enumerate; p

While in the example herein given, the ingredients of my improvedcomposition of matter are set forth as consisting of shellac and theunsaturated fatty. acid of China-- wood oil, the invention is notlimited to these particular ingredients, as it-is applicableas The acidis placed in a suitable veswell to other gums and resins and to othervarieties of unsaturated fatty acids, or mixtures thereof with saturatedacids. For instance the fatty acids split ofl from linseed oil may beused as the solvent, and also the fatty acid split oil from perilla.Instead of shellac, I may employ acaroides and also gum benzoin andsimilar gums; and various resins may be employed in making up myimproved composition of matter.

While in the foregoing description I have set forth my invention, bothas to the composition of matter and the process of producing the same,in the form and manner which I prefer to adopt, it will be understoodthat the invention is not limited to the particular ingredientsset forthin the example given, nor to the particular process in bringing aboutthe admixture of said ingredients, exce t in so far as such limitationsare specific in the claims.

Having thus described my invention, what I claim is z.

1. The improved composition of matter consisting of shellac dissolved inan unsaturated fatty acid.

2. The improved composition of matter consisting of shellac dissolved inan unsaturlated fatty acid split off from China-wood o1 3. The improvedcomposition of matter consisting of 66?-% of shellac dissolved in of anunsaturated fatty acid split off from China-wood oil.

In testimony whereof, I have aflixed my signature hereto.

EMILE or: STUBNER.

